Gage-cock.



PATENTED APR. 23, 1907.

G. J. HARKINS. GAGE COCK.

APPLIOATION FILED DBO. 26. 190e.

Mk e

UT i w myx . arev usedon 'boilers for y particularly when it occurred on the boiler of a loeomotivein active service and neeessi# lated interruption of the .locomotive was engaged.

' `iront'sectio-ii A, arear section l and a bonnet which permit of readily ietaching these parts lN ew York, have inventeda new and useful `fol owing is a specification.

` shown or with other means for securing the UNITED STATES PATENT orricn.

CHARLES J. HARK'INS, NEW YORK.

i i GAGE-cock. l

Najesnfa'es.

. Specification of Letters' Patent.

Patented'April 23, 1907.

Application filed December 26, 1906, Serial No. 349,368.

-To Vall wiz/0m t may concern:

l'Be it known 4that I, CHARLES J.`HARK1Ns,

a-eitizen ofthe UnitedStates, residing at Bufale, in the county of Erie and State of Im reve ent in Gage-Cocks, of which the v vThis invention relates to gage cocks which testing them as tothe level of the Water in the same. f

' Heretofore gage cocks have usually been so constructedv that when they became leaky the boiler had to be shutdown in order to gage cock which often was attended with considerable inconvenience and loss oi time work in which the The'object of this invention is to provide a gage4 cock in which a leali may be stopped without necessitating shutting down oi the boiler and which can be interclianged to permitre air or replacement ofthe worn parts 'to bede erred until such a time as will be more convenient. l

In the .accompanying drawings: Figure l is a longitudinal section of one form of my improved gage cock. Figs. 2 and 3 are cross sections thereofin the correspondingly nuinbered lines in Fig. l. Fig. 4` is a detached sectional view of a modified construction of the reversible rear casing section of my iin.w proved gage cock and the parts connected theiewith.y v V l Similar, letters of reference indicate corresponding parts throughout the several views.

yThe gage cock shown in Figs. 1-3 and ein-A bodying my invention has a tubular or hollow body or casing composed essentially of a C.v I The front section may be provided at its front endwlth an external screw thread a, as

same in an opening of the boiler. The rear section B is reversible and may be `:onnected at opposite ends. with. thc opposing ends ol the front section and the bonnet by moans from. eachother. rl`he means ior this purpose shown in the drawings, as an example, consists in providing -opposite ends of tlf.; rf; er section with external screw threads which er gagewith internally tlneaded sockets' a?, l) l formed, respectively, at the rear end of the front body section and the front end of the bonnet. The front section 'of the body is provided centrally with a main longitudinalY bore d of comparatively small diameter and at its front end with a bore D of larger diame' ter forming a valve chamber. A valve seat e is formed on this section at the junction of its front and central bores which tapers rearwardly.

. F represents a check valve arranged in the chamber D of the front body section and having a rearwardly taperingface which is adapted to' engage with the valve seat of said body section.' This valve is provided with rearwardly-projecting stem f of angular'or iiatsided cross section which is arranged in the mainA bore of the front body section and terminates at its outer or rear end short of the outer end of said main bore.

the valve chamber D by any suitable means but preferably by a cross pin g secured to the front body section in iront of the cheek valve, as shown in Fig. 1..

The outer end of the bonnet is provided K The checkvalve may be prevented from escaping 'liroinv with an internally screw threaded opening which receives a valve shifting spindle H having an external screw thread which Works in said opening of the bonnet and a handle, wheel or. knob l1, at its rear end whereby the samem ay be turned. The rear end of this valve spindle is ingor socket fi. Y l

'.lhe centralpoi'tion of 4the rearbody section is providedwith a lateral outlet in which a discharge nozzle J is secured and at opposite ends of this section the saine is provided with. heads K, K having axial openings or ports le, wbereby the interior or main valve provided with an axial `openchamber l1 of this section is connected respec'tively with the interior of the front body section andthe bonnet. At the' inner ends ol' the port openings Ligt@ the rear body section is provided with valve seats Z,"Z which `preferably areof conical form and taper outwardly ln opposite directions from the interior ol' this section.

)d represents 'the enlarged central part of a reversible valve stem and'm, m its two reduced shanks arranged at opposite ends ofI thc central part. 'l`he central part M of this stem is arranged within the main valve chamber, its front shank m projects through the front port lr into engagement with the rear end oi the stein of the check valve and TOO ITO

and a reversible rear .sectionV provided centrally with an outlet and at opposite ends with valve seats and adapted to be detachably connected at either ol its ends with the rear end oi" said iront section, a check valve arranged in said lront section and adapted to close against the seat thereof, a pair of connected rnain valves arranged in said rear sec tion and co-operating respectively with the seats thereof and also with said check valve, and means for operating said valves, substantially as set forth.

2. A gage cock comprising a casing having a iront section provided With a valve seat and a reversible rear section having an outlet and adapted to be detachablv connected at either end with the rear end of said front section, heads arranged at oppositeends or' said i v rear section and each provided With a port and a valve seat around the port, a check valve arranged in the front section and adapted to engage with the seat thereof, a valve stem extending through said front section and into engagement at its front end with the check valve and having a pair of valves Which are adapted to engage the seats of said rear section, and means for operating said valves, substantially as set forth,

3. A cock comprising alcasing having a 'l'ront section provided with a valveseat and a reversible rear section. having an outlet and adapted to be detachably connected at either end with the rear end ol said front section, heads arranged at opposite ends' of said rear section and each providedwith a port and a valve seat around the port, a check valve arranged in the front section and adapted to engage with the seat thereol", a valve 'stein extending through said front section and into engagement at its iront end with the checa .valve and having a pair of valves which are adapted to engage the seats of said rear section, a bonnet adapted to bc detachably connected with the rear end of said r"ar section, and a screw threaded shifting spindle working in said bonnet and operatively engaging the rear end of said reversible valve stern, substantially as set forth.

4. A. gage cock conijrnising a casing .having a front section provided with a valve seat and a reversible rear section provided with an outlet and adapted to be connected at either end with the rear end ol' said l'ron: section, heads arrangedat opposite ends ol said front section each Inovided with aport and a seat, one olIv said heads being` l'oiinirl`iiitegrally with said rear section Wnile the other is separable therefrom, a check valve lar-` ranged in said front section and adapted to 1 engage the seat thereof, and a `reversible valve stem extending through said rear section with its front end in engagement with said check valve and havinga pair of main ;valves adapted to co-operate respectivelyr ing means engaging with the rear end of said reversible valve stein, substantially as set forth.

5. A gage cock comprising a casing having a front section provided with avalve seat and a reversible front section provided With anoutlet and adapted to be connected at either end with the rear end of said front sec tion, heads arranged atvopposite ends of'said front section each provided with a port and a seat, one of said heads being formed integrally With said rear section While the other is separable tl'ierelrcin, a check-valve arranged in said liront section and adapted to engage the seat thereof', and a reversible valve stein extending through said rear seotion with its front end in engagement with z said check valve and having a pair of main valves adapted to co-operate respectively with the seat of said rear section, a bonnet detacliabl)Y connected with the rear end of said front section, and a screw threaded shitting spindle working in said bonnet and engagiii with the rear end of said reversible valve stein, substantially as set lforth.

a front section provided with a valve seatl and a reversible rear section having an outlet, and adapted to be detachably connected at f tion, heads arranged at opposite endsr of said rear section and each provided with a port and engage with the seat thereof, a valve stern extending through said front section and into engagement at its front end With the lcheck valve and having a pair of valvesJ which are g adapted to engage'the seats of said rear sec-A l tion, a bonnet adapted to be d etachably connectcd with the rear end of said rear section, i a screw threaded shifting spindle Working in j said bonnet and operatively engaging the rear end oll said reversible valve stein7 and a packing arranged between the rear parts of the rear section and the reversible valve stein therein, substantiall)r as set forth.

bei', 1906. f CHARLES J, IIARKINS.

Witnesses :YY-"- Timo. L. Peer,

lil. M. (limi-IAM.

with the seat of said rear section, and operat' either end with the rear end of said front sec-4 l Witness my hand this 24th da)T of Decem- I .90 G. A cock comprising a casing having y a valve lseat aroundthe port, a check valve j arranged in the front section and adapted to IOO 

